MariaDB has actually overtaken MySQL, ‘cause of few basic reasons: Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry. MariaDB server is a community developed fork of MySQL server. MySQL currently works on almost all system platforms (Linux, Microsoft Windows, OS X, SunOS …). Sun Microsystems acquired MySQL in 2008, which was later acquired by Oracle in 2010. Original development of MySQL by Michael Widenius and David Axmark beginning in 1994. MySQL is an open-source, relational database management system, written in C and C++. (By default, if you add your “Pictures” collection, the database files will be present in ~/Pictures folder). SQLite database files could be found in your “collection” folder, which you have added to &digikam. For performance and technical reasons, you cannot use removable media. A remote file system such as NFS cannot be used here. Take care to use a place hosted by fast hardware (such as SSD) with enough free space especially for thumbnails database. Now all remains is to open the terminal, switch to the directory where databases are stored. For Ubuntu and its derivatives, it could be retrieved using sudo apt-get install sqlite3 or sudo apt-get install sqlitebrowser. This could be achieved using sqlite3 packages or sqlite browser (high quality, easy to use visual tool for managing database objects). To make your application run fast and smoothly, it is recommended to check and optimize your databases once in awhile. Three SQLite files used for storing them are named respectively: SQLite "just works".īy default, &digikam uses SQLite as its back-end for storing important metadata and thumbnails. SQLite is fast and reliable and it requires no configuration or maintenance. For device-local storage with low writer concurrency and less than a terabyte of content, SQLite is almost always a better solution. SQLite reads and writes directly to ordinary disk files. Rather, it is an embedded SQL database engine, &ie it is embedded in an end program. SQLite is not directly comparable to client/server SQL database engines such as MySQL, Oracle or PostgreSQL. SQLite is a relational database management system, contained in C programming library. For an introduction of internal data storage, please refer to Introduction of &digikam Databases section.
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